Vacuum ice chest



June l5 1926.

A.` CSIGA VACUUM ICE CHEST Filed July 2.3,v

1924 2 Sheets-Sheet vento@ Filth-:neg

June 15 1926. 1,588,707

A. CSIGA VACUUM ICE CHEST Filed July 25, 1924 2 Smeets-sheet 2 Patented June 15,' 1926.

`PATENT oFFlcE.

ALEXANDER, CSIGA, F CAMILLUS, NEW 'YQRK.

' VACUUM ICE CHEST.

Application led July 23, 1 924. Serial No. 727,746.

This invention relates to vacuum ice chests and it consists in the novel features hereinafte described and claimed.

An object of the invention is to provide an ice chest structure having a lining structure in which a vacuum may be established for the purpose of isolating the intcrior'compartment of the chest from the external atmosphere in order that the ice wh1c h 1s contained within the chest may be retained in acongealed conditin and that the contents of the chest may be kept properly refrigerated for an indefinite perlod of time.

With this object in view the chest comprises an outer casing, preferably of wood y and which is lined wlth two thicknesses of sheet metalto render the wall of the casing air tight and to prevent the said sheets from warping inwardly when the vacuum 1s established within the chest. A compartment is located within the casing of the chest and is spaced from the said lining sheet. Strips are interposed between the sheets and the compartments and serve to hold the said parts in spaced relation with respect to each other. The casing is provided with suitable door openings and hinged doors are arranged to close over the said openings, the said doors at their inner sides being provided with linings substantially the same as the lining which is provided at the interior of the body of the casing. An ice pan is supported within the compartment and is pro,-

vided with a drain pi e made up of slip 85 joint sections and wliic communicate with a goose neck pipe which is mounted at the bottom of the'casing and which passes transversely through the said bottom wall. A lock of especial design and construction is provided and used in conjunction with the side door of the ice chest and ma be manipulated to securely hold the sai door in a closed position and whereby an air tight joint is provided between the edges of the door and the side walls of in the casing.

.In the accompanying drawings Figure 1 isfa vertical' transverse "sectional view of the ice chest.

Figure 2 is a horizontal sectionalview thereof cut on the line 2--2` of Figure '1.

Figure 3 is a fragmentary detailed view vof the lining of the chest with parts'thereof broken away.

Figure 4 is a detail sectional view of a the door opening valve which is used upon the lining of the ice chest.l

Figure 5 is a side elevation of a lock which is used upon the ice chest.

Figure 6 is an edge elevation of the lock.

The ice chest comprises a casing 1, preferably of wood, having two sheets of metal arranged side by side and lining the inner surface of the casing 1 so as to make the same air tight. A,y compartment chamber 3 is located interiorly of-the chest 1 and spaced from the' inner sheet 2. Strips l `are arranged between the inner sheet 2 and the exteriorsurface of the compartment chamber 3 and serve to hold the said chamber spaced withrelation to the said sheet. A valve 5 passes through the wall of the chamber 3 and communicates with the space between the said chamber and the inner sheet 2.' The valve comprises a casing 6 having an interiorly located seat 7 a valve 8 movably mounted in the casing and provided with a stem 9 which4 passes longitudinally through said casing. A spider 10 is inserted in the end portion of the casing 6 and serves as a guide for the stem 9. The outer end of the casing 6 is normally closed `by a cap 11 and the flexible washer 12 is interposed between the end of the casing and the cap ands serves as means for packing or closing the jointbetween the Cap and the sesl casing. The front or side door 13 of the chest is provided at its inner side with a lining similar to that above described, and a valve 5 of the structural arrangement as hereinbefore described. The top door 14 of the chest is provided at its inner side with a lining similar to that hereinbefore described and is also provided with a valve 5.

An ice pan" 15 is supported within the compartment chamber 3 upon brackets 16 and is provided with a drain pipe section 17. The said section 17 slips into the upper end of a section 18 and the section 18 slips into the upper end of a section 19 which 100 in turn slips into one end of a oose neck 2O mounted upon the bottom o the p@ompartment chamber 3 and held at a fixed position by a post of solder 21. The other end of the goose neck 20 connects with a drain 105 pipe -22 which passes through the bottom of the casing 1. The casing 1 is provided at its front side-with a hinged a ron 23 and is adapted to swing do'wn'over` t e drip panl (not shown) and which is under the 110 casing below the drain pipe 22 the usual manner. Y v By applying a suction pump to the valves 5 the air may be exhausted from the'spaces between the lining sheet 2 and the walls of the compartment chamber and thus the vacuum is established around the comparis-f ment chamber. The strips 4 prevent the sheets from buckling inward when the air is exhausted from the space between the sheets and the walls of the compartment chamber andthe twosheets arranged side by side make an air tight Wall which prevents air fromI the exterior enteringl vthe space between the lining sheet and the walls of the compartment chamber.

A lock casing 24 is mounted upon the exterior surface of the front door 13 anda bolt 25' is slidably mounted in the said cas ing. The said bolt is provided at its upper vside with, notches 26 which may receive the intermediate portion of a spring 27 located within the casing and whereby the said bolts may be held at a projected 'or retracted position .with relation vto the casing. The casing24 is provided with a keyhole` opening 28 through which a key may be inserted and engaged with lugs 29 mounted at the lowervside of the bolt 25 and which maybe used for moving the saidbolts. A handle 2,9 is provided at4 one end Y with a disc 301 which is pivotally mounted v disk 30 is provided with a recess 31 which may receive the end of the bolt 25 when I at the side edge of the lock casing 24. The

the'said bolt is projected with relation to the casing 24 and whereby the handle 29 is heldiagainst turning movement with rey l lation to the lock casing. A keeper plate 32 is mounted upon the casing of the ice chest and is provided with 4a lug 33 which is inwardly' disposed. The disk 30 is provided with a cam ilange 34; which may be moved under the lug 33 and whereby the' door 13 maybe secured at a closed position chamber, the width of each strip being dis-- posed rectangularly to the wallsof the compartment chamber and the lining sheets.

2.'An ice chestl comprising a casing, a pair of juXt-a-posed lining sheets appliedto the inner surface of the casing, a compartment chamber located interiorly of said cas- 'ing and spaced from the lining sheets, 4and undulated strips interposed between the lining sheet and the wall of the compartment chamber, the width of each strip being disposed rectangularly to the walls ofthe compartment chamber and the lining sheets, and a plurality of valves communicating wit walls of the compartment chamber.

In vtestimony whereof I affix my signature.

` A ALEXANDER osIGA."

my invention, what h 70. the space between 'the lining sheet and the 

